private void registerHeader()

in src/main/java/org/apache/sling/engine/impl/log/RequestLoggerResponse.java [313:341]

• 17 lines of code
• 5 McCabe index (conditional complexity)

    private void registerHeader(String name, String value, boolean add) {
        // ensure the headers map
        if (this.headers == null) {
            this.headers = new HashMap<String, Object>();
        }

        // normalize header name to lower case to support case-insensitive
        // headers
        name = name.toLowerCase();

        // retrieve the current contents if adding, otherwise assume no current
        Object current = add ? this.headers.get(name) : null;

        if (current == null) {
            // set the single value (forced if !add)
            this.headers.put(name, value);

        } else if (current instanceof String) {
            // create list if a single value is already set
            List<String> list = new ArrayList<String>();
            list.add((String) current);
            list.add(value);
            this.headers.put(name, list);

        } else {
            // append to the list of more than one already set
            ((List<Object>) current).add(value);
        }
    }